<template>
  <div class="shopcar-container">
    
    <div class="goods-list">

      <!-- 商品列表项区域 -->
      <div class="mui-card" v-for="(item, i) in goodslist" :key="item.id">
				<div class="mui-card-content">
					<div class="mui-card-content-inner">
						
            <mt-switch 
            v-model="$store.getters.getGoodsSelected[item.id]"
            @change="selectedChanged(item.id,$store.getters.getGoodsSelected[item.id])"></mt-switch>
            <img :src="item.thumb_path">
            <div class="info">
              <h1>{{ item.title }}</h1>
              <p>
                <span class="price">￥{{ item.sell_price }}</span>
                <numbox :initcount="$store.getters.getGoodsCount[item.id]" :goodsid="item.id"></numbox>
                <!-- 问题：如何从购物车中获取商品的数量呢 -->
                <!-- 1.我们可以先创建一个空对象，然后循环购物车中所有商品的数据，把当前循环这条商品的Id，作为对象的属性名，count值作为对象的属性值，这样，当把所有的商品循环一遍，就会得到一个对象：(88:2,89:1,90:4) -->
                <a href="#" @click.prevent="remove(item.id, i)">删除</a>
              </p>
            </div>

					</div>
				</div>
			</div>

    </div>

    <!-- 结算区域 -->
   <div class="mui-card">
				<div class="mui-card-content">
					<div class="mui-card-content-inner jiesuan">
						<div class="left">
              <p>总计（不含运费）</p>
              <p>已勾选商品<span class="red">{{$store.getters.getGoodsCountAndAmount.count}}</span>件，总价<span class="red">￥{{$store.getters.getGoodsCountAndAmount.amount}}</span></p>
            </div>
             <mt-button type="danger">去结算</mt-button>
					</div>
				</div>
			</div>
 
     <p>{{$store.getters.getGoodsSelected}}</p>

  </div>
</template>

<script>
  import numbox from '../subcomponents/shopcar_numbox.vue'


  export default {
    data(){
      return {
        goodslist:[]  //购物车所有商品的数据
      };
    },
    created(){
      this.getGoodsList();
    },
    methods:{
      getGoodsList(){
        //1.获取到store中所有的商品的Id，然后拼接出一个逗号分隔的字符串
        var idArr = [];
        this.$store.state.car.forEach(item=>idArr.push(item.id));
        //如果购物车没有商品，则直接返回，不需要请求数据接口，否则会报错
        if(idArr.length<=0){
          return;
        }
        //获取购物车商品的列表
        this.$http.get("api/goods/getshopcarlist/"+idArr.join(",")).then(result=>{
          if(result.body.status===0){
            this.goodslist = result.body.message;
          }
        });
      },
      remove(id,index){
        //点击删除，把商品从store中根据传递Id删除，同时，把当前组件中的goodslist中，对应要删除的那个商品，使用index来删除
        this.goodslist.splice(index,1);
        this.$store.commit('romoveFormCar',id)
      },
      selectedChanged(id,val){
        //每当点击开关，把最新的开关状态，同步到store中
       // console.log(id+"---"+val);
        this.$store.commit('updateGoodsSelected',{id,selected:val});
      }
    },
    components:{
      numbox
    }
  };
</script>

<style lang="scss" scoped>
 .shopcar-container{
   background-color: #eee;
   overflow: hidden;
   .goods-list {
     .mui-card-content-inner{
       display: flex;
       align-items: center;
     }
     img{
       width: 60px;
       height: 60px;
     }
     h1{
       font-size: 13px;
     }
     .info {
       display: flex;
       flex-direction: column;
       justify-content: space-between;
       .price{
         color: red;
         font-weight: bold;
       }
     }
   }
   .jiesuan{
     display: flex;
     justify-content: space-between;
     align-items: center;
     .red{
       color: red;
       font-weight: bold;
       font-size: 16px;
     }
   }
 }
</style>
